import pytest

import ttfrog.app
from ttfrog import schema
from grung.db import GrungDB
from tinydb.storages import MemoryStorage


@pytest.fixture
def app():
    fixture_db = GrungDB.with_schema(schema, storage=MemoryStorage)
    ttfrog.app.load_config(defaults=None, IN_MEMORY_DB=1)
    ttfrog.app.initialize(db=fixture_db, force=True)
    yield ttfrog.app
    ttfrog.app.db.truncate()


def test_create(app):
    user = schema.User(name="john", email="john@foo", password="powerfulCat")
    assert user.uid
    assert user._metadata.fields["uid"].unique

    # insert
    john_something = app.db.save(user)
    last_insert_id = john_something.doc_id

    # read back
    assert app.db.User.get(doc_id=last_insert_id) == john_something
    assert john_something.name == user.name
    assert john_something.email == user.email
    assert john_something.uid == user.uid

    # update
    john_something.name = "james?"
    before_update = app.db.User.get(doc_id=john_something.doc_id)
    after_update = app.db.save(john_something)
    assert after_update == john_something
    assert before_update != after_update


def test_permissions(app):
    john = app.db.save(schema.User(name="john", email="john@foo", password="powerfulCat"))
    players = app.db.save(schema.Group(name="players", members=[john]))
    notes = app.db.save(schema.Page(name="notes"))

    # default read-only
    assert players.can_read(notes, app.db)
    assert not players.can_write(notes, app.db)
    assert not players.can_delete(notes, app.db)

    # set to rw, no delete
    notes.set_permissions(players, [schema.Permissions.READ, schema.Permissions.WRITE], app.db)
    assert players.can_read(notes, app.db)
    assert players.can_write(notes, app.db)
    assert not players.can_delete(notes, app.db)

    # members of the group inherit group permissions
    assert john.can_read(notes, app.db)
    assert john.can_write(notes, app.db)
    assert not john.can_delete(notes, app.db)

    # permissions are the union of user + group permissions
    notes.set_permissions(john, [schema.Permissions.DELETE], app.db)
    assert not players.can_delete(notes, app.db)
    assert john.can_delete(notes, app.db)